What is it called when going on roller coasters make you extremely nauseous?
What you describe is called motion sickness. The fluid in your inner ear can get out of whack, because of conflicting signals to the brain. The result is nausea and dizziness. Watching the horizon flip over and over while on a looping coaster can cause this. You may also get nausea when on a boat, which is known as sea sickness. Some people are susceptible to this, while others are not. There are over the counter drugs such as Bonine and Dremamine that help with motion sickness. These often have to be taken in advance of an activity that can make you feel sick. Looking at a fixed object and not at the horizon or anything else that seems to move can help.
